Useful Links

Errata

On page 84, it should be noted that the reading from the photoresistor will change once the LED is programmed to turn on. In an otherwise dark room, the light from the LED will impact the reading from the photoresistor. You can compensate for this by adjusting your thresholds in code or by putting a paper cone around the photoresistor to block out stray light that isn’t coming from overhead.(Issue reported by Aaron Williams)

Code

All code is licensed via the GNU GPL v3. Code is maintained and updated on GitHub. The download zip linked above always contains the most recent version of the code examples that have been pushed to the GitHub Code Repository.